To support brain development and give pup the ability to concentrate for longer and learn faster, Cherish Playful Puppy has a unique brain-boosting combination of plant-based fatty acids and DHA derived from marine algae and deep-sea fish oils. When muscles and bones are rapidly developing, too much protein can do as much harm as too little. Its protein level is carefully balanced with calcium for safe muscle and skeletal growth. It is also fortified with CocoMCT (medium-chain triglycerides), a brain boosting food derived from natural coconut that helps improve learning-related tasks, memory, attention, alertness, and trainability for puppies.